Drafted in the 20th round (587th overall) by the Miami Marlins in 2014 (signed for $400,000)

Holloway was a two-way players who appeared in just nine varsity games as a junior, when he was in the process of growing from 5-foot-11 to 6-foot-3, and committed to nascent Division I program Nebraska-Omaha. While he's still a Mavericks signee, it's unlikely he'll get to campus after taking a quantum leap last summer and fall and continuing the upward trend this spring. Holloway has touched 94 mph at times and comfortably sits in the 87-91 range, regularly reaching back for more. He's a classic Colorado projection with a pitcher's frame (listed at 6-foot-4, 180 pounds) and loose arm, and scouts think he could throw much harder consistently in the future. He has shown some ability to spin a breaking ball, flashing average pitches with depth, though he's not consistent with it. Scouts have compared him to past Colorado pitchers such as Brandon McCarthy, and he's likely to go out as high as the third round.